Update Saved APs

Previously, if there wasn't a pre saved list, the Saved APs view would be empty. Now, users will always see the [Add Network] option at the top, even if there isn't a list created yet.

alloc/flip_wifi_alloc.c

@@ -119,6 +119,11 @@ FlipWiFiApp *flip_wifi_app_alloc()
     if (!load_playlist(&app->wifi_playlist))
     {
         FURI_LOG_E(TAG, "Failed to load playlist");
+
+        // playlist is empty?
+        submenu_reset(app->submenu_wifi_saved);
+        submenu_set_header(app->submenu_wifi_saved, "Saved APs");
+        submenu_add_item(app->submenu_wifi_saved, "[Add Network]", FlipWiFiSubmenuIndexWiFiSavedAddSSID, callback_submenu_choices, app);
     }
     else
     {